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Colonization of a voice prosthesis by Cryptococcus neoformans.
T G Bauters1, M Moerman, G Pini
1Laboratory for Pharmaceutical Microbiology, Ghent University, Belgium.
Medical Mycology
|September 15, 2001
Summary
A rare fungal infection by Cryptococcus neoformans was found colonizing a voice prosthesis in a patient who had undergone surgery for glottic carcinoma. The yeast strain matched environmental samples from pigeon droppings, suggesting a potential source of infection.
Area of Science:
- Mycology
- Infectious Diseases
- Otolaryngology
Background:
- Tracheoesophageal voice prostheses are crucial for speech rehabilitation in laryngectomized patients.
- These devices are susceptible to microbial colonization, primarily by Candida yeasts, leading to deterioration.
- Fungal infections pose a significant challenge to the longevity and function of voice prostheses.
Observation:
- A unique case of voice prosthesis colonization by Cryptococcus neoformans is reported in a patient with a history of glottic carcinoma.
- This represents the first documented instance of C. neoformans infecting such a medical device.
- The patient's environment, specifically pigeon excreta, was identified as a potential source of the fungal isolate.
Findings:
- Genomic analysis revealed an identical pattern between the C. neoformans isolate from the voice prosthesis and environmental samples.
- This genetic match strongly suggests that pigeon droppings were the source of the patient's infection.
- The study highlights the potential for unusual fungal pathogens to affect medical implants.
Implications:
- This case broadens the spectrum of fungi known to compromise tracheoesophageal voice prostheses.
- It underscores the importance of environmental fungal surveillance in immunocompromised patients or those with indwelling devices.
- Further research is needed to understand the pathogenesis and develop preventive strategies against C. neoformans in this clinical setting.